Elliptical-sectioned drum system with helical expander

ABSTRACT

This invention relates to an elliptical-sectioned drum system with a helical expander used on textile finishing machines. The system subjects the processed fabric to beating and expanding actions and has broad and shallow sliding surfaces and impact edges.

CROSS-REFERENCE TO RELATED U.S. APPLICATIONS

Not applicable.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

NAMES OF PARTIES TO A JOINT RESEARCH AGREEMENT

Not applicable.

REFERENCE TO AN APPENDIX SUBMITTED ON COMPACT DISC

Not applicable.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to an elliptical-sectioned drum system with ahelical expander. It is an elliptical-sectioned drum system with helicalexpander used on textile finishing machines and subjecting the processedfabric to beating and expanding actions.

2. Description of Related Art Including Information Disclosed Under 37CFR 1.97 and 37 CFR 1.98

Until today, some of the drums being used on textile finishing machineshave a structure of circular cylinder section and helical expander.These perform the fabric expanding process not with pulse effects, butwith continuously rotational motions. There are also drums called beatercylinders which subject the fabric to only beating motion. These don'thave expanding functions. They consist of small diameter cylinderslocated around a large diameter cylinder and they also have beaters inthe form of a spinning wheel (consisting of profiles like hollow tubes).There are also configurations giving volume and touching by having thefabric beaten and bulked through mechanical or pneumatic mechanisms.

BRIEF SUMMARY OF THE INVENTION

In our invention, there is an elliptical-sectioned drum body and anexpander section wound helically over this body. Expander section iswounded differentially from center to perimeter. It beats the fabricwith pulse contacts through its edges on large diameter (principalaxis), while performing rotational motion on the machine it is fitted.The frequency and the strength of the pulses are adjusted with the drumcycle and the distance of drum to the fabric. While the fabric is beingsoftened by helical expanders wound over drum, it is expanded to thewidth and the hems are eliminated. While the sharp impact edges of thedrum soften and expand the fabric by beating, the broad and shallowsliding surfaces prevent the processed fabric from wrapping around drum.

Since the drums expanding the fabric with circular cylindricalstructures and continuously rotational motion don't have beat effects,the areas of usage are limited to only expanding the width of thefabric. The beater cylinders being used today cannot fulfill thefunction of expanding due to their only beat effect structure. Theexamples giving volume and touching by mechanical or pneumaticmechanisms don't have expanding effect on fabric and they cause breakson creases of the processed fabric. In our invention, homogenous andstrong beating and expanding effects are created due to the pulse andlinear beat effects of the sharp impact edges. The broad and shallowsliding surfaces within our invention prevent wounding by slightlycontacting the processed fabric attempting to wound over drum shortlyafter beating. Differential structured helical wound on the drum allowsthe fabric to expand to the width, thereby folds and wrinkles areprevented. Since the rotation speeds and distances to the fabric of thedrums, which can be used at a desired number, can be adjusted, thestrength of the beating and expanding effect to be provided to thefabric can be kept at desired level and over-wearing of the fabric isprevented. For the fabrics that are not easy to expand, soften and givevolume, providing much more effects and processing this kind of fabricswithin shorter times are enabled. Unlike other drums being used today,it is possible to use one single drum instead of separate beater andexpander cylinders as it incorporates the features of providing bothexpanding and beating effects for the processed fabric. Since thebeating and expanding effects can be applied together to the fabric, theprocess residues, such as undesired dust and clips, are removed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a schematic view of the present invention.

FIG. 2 shows front and side views details of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The reference numbers of the parts used and their description are asfollows;

1) elliptical drum;

2) differential helical expander;

3) impact edges;

4) broad and shallow sliding surfaces; and

5) bearing and drive shafts.

On the elliptical drum (1) to which rotational motion is given and whichis beard over bearing and drive shafts, there is a differential helicalexpander (2) preventing the processed fabric to fold and providing it tobe expanded. Continuously rotating due to rotational motion, it obtainsfrom bearing and drive shafts (5), the elliptical drum (1) performscross-linear impact beating over impact edges (3) on both narrow sides.In other words, the impact edges (3) make the expanding effect ofdifferential helical expander (2) on fabric easier and allow the fabricto be softened and to gain volume. In the meantime, the broad andshallow sliding surfaces (4) located on two other large sides (4) of theelliptical drum (1) prevents wounding over elliptical drum (1) byslightly contacting the fabric attempting to wound over elliptical drum(1) through the act of beating effect of impact edges (3).

Our invention can be fitted to textile finishing machines and used toexpand, soften, give volume to any woven and knitted fabric and toadjust their weight in grams by expanding to the width.

1. An elliptical-sectioned drum system with helical expandercharacterized in that it is a continuously rotating elliptical drum bythe rotational motion it obtains from bearing and drive shafts having adifferential helical expander located on it, and that it has impactedges on each narrow side and broad and shallow sliding surfaces on twoother large sides.
 2. The elliptical-sectioned drum system with helicalexpander of claim 1 characterized in that it has impact edges located oneach narrow side of the elliptical drum, providing softening and volumewhile making the expanding effect of differential helical expander onfabric easier, and performing cross-linear impact beating on processedfabric.
 3. The elliptical-sectioned drum system with helical expander ofclaim 1 characterized in that it has broad and shallow sliding surfaceslocated on two other large sides of the elliptical drum, preventingwounding over elliptical drum by slightly contacting the fabricattempting to wound over elliptical drum through the act of act ofbeating effect of impact edges.